On the Whitham system for the (2+1)‐dimensional nonlinear Schrödinger equation
On the Whitham system for the (2+1)‐dimensional nonlinear Schrödinger equation
复制标题
(2 1)维非线性薛定谔方程的Whitham系统
DOI:
10.1111/sapm.12543
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发表时间:
2022
影响因子:
2.7
通讯作者:
Rumanov, Igor
中科院分区:
文献类型:
--
作者:
Ablowitz, Mark J.;Cole, Justin T.;Rumanov, Igor
Whitham modulation equations are derived for the nonlinear Schrödinger equation in the plane ((2+1)‐dimensional nonlinear Schrödinger [2d NLS]) with small dispersion. The modulation equations are obtained in terms of both physical and Riemann‐type variables; the latter yields equations of hydrodynamic type. The complete 2d NLS Whitham system consists of six dynamical equations in evolutionary form and two constraints. As an application, we determine the linear stability of one‐dimensional traveling waves. In both the elliptic and hyperbolic cases, the traveling waves are found to be unstable. This result is consistent with previous investigations of stability by other methods and is supported by direct numerical calculations.
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影响因子:
1.7
作者:
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通讯作者:
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影响因子:
2.7
作者:
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DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
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通讯作者:
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